Trimming press



April 24, 1928. 1,667,654

E. c. CLARKE TRIMMING PRESS Filed June :50, 1925 5 Sheets-Sheei 1 April 24,1928. 1,667,654

E. C. CLARKE TRIMMING PRESS Filed June 50, 1925- 5 Sheets-Sheet 3 April 24, 1928. 6

E. C. CLARKE v TRIMMING PRESS Filed June 30. 1925 5 Sheets-Sheet 4 April 24, 1928. I 1,667,654

E. c. CLARKE TRIMMING PRESS Filed June 30. 1925 5'Sheets-Sheet 5 56. Zzw MZZ/E&7/ m kj M PM Patented Apr. 24,1928.

om'rso STATES PATENT OFFICE.

EUGENE G. CLARKE, OE CHAMBERSBURG, PENNSYLVANIA, ASSIGNOR TO CHAMBERS- BURG ENGINEERING COMI'ANY, OF CHAMBERSIBURG, PENNSYLVANIA, A

POIB-A'IION OF PENNSYLVANIA.

IBIMMIN G PRESS.

Application filed June 30, 1925. Serial No. 40,708.

This invention relates to improvements in frames for trimming presses and the like, and the principal object of the invention is to provide a novel frame construction having manufacturing advantages over frames as made heretofore constructed, as Well as advantages of strength and durability.

In the attached drawings, in which I have illustrated a fly wheel trimming press made in accordance with my invention: 5

Figure 1 is a front elevation of thepress;

Fig. 2 is a side elevation;

Fig. 3 is an elevation of the reverse side of the press;

Fig. 4 is a section on the line 44, Fig. 1;

Fig. 5 is a section on the line 55, Fig. 1

Fig. 6 is a view in perspective showing the base detached;

Fig. 7 is a View in perspective of the base plate;

Fig. 8 is a detached perspective of the side pieces of the frame including the two, tie bars and the intermediate separators;

Fig. 9 is a detached perspective of the other side pieces including the tie bars and the intermediate separator, and

Fig. 10 is a detached perspective illustrating the yoke or' top piece and the crank shaft bearings.

With reference to the drawings, it will be-"noted that the frame com-prises a base 1,

see Fig. 6, having at the sides thereofvertical projections 2, 2, to the o posite sides of each of which are secured by means ofbolts 3 tie bars 4, 4, which extend upwardly above the base and at their tops support a yoke or top piece 5,- see Fig. 10, the opposite ends of the yoke being secured between the respective pairs of side bars bymeans of bolts 6, 6, see Fig. 1. The bars 4, 4, are

reinforced by means ofseparators 7, one of which is secured between each of the pairs of tie bars, as clearly illustrated in Figs. 2 and 3, by means of bolts 8, 8, passed transversely through the tie bars and through the said separators. The separators are further secured in place by means of studs 9 which are passed through the bottoms of the separators and into the top of the base 1.

-.As clearly illustrated, the yoke 5 includes the upper half of the bearings for a crank shaft 10, and the lower halves of these bearings, designated by the reference numeral 11,

see particularly Fig. 10. are secured to the under side of the yoke by meansof bolts 12, 12. These bearings are further adjust ably supported on jacks 13, 13, threaded into the tops of the respective separators 7, as well shown in Fig. 2. These jacks 13 are provided with means, such as apertures 14, forturning them to adjust the lowerhalves 1 1 of the said bearings with relation to the shaft 10.

Suspended from the offset crank .of the crank shaft by meansof a suitable connectiing rodor pitlnan 15 is the rain 16, which as clearly shown in F igsi 1 and 4 lies between the inner faces of the separators 7. These separators-are formed with a longitudinal extension 17 at one side ofthe working face, and these extensions in conjunction with retaining plates 18 secured by means of bolts 19, 19, to the tie bars onthe sides ofthe uprights opposite the projeo-- tions 17, form a guide channel for the said 'hich secures the connecting rod 15 to the am 16 is extended beyond the side faces of the ram and projects into the guide slots formed as previously described.

To provide a top for the base 1 and a suitable working face, I provide a plate 21, see Fig. 7, which is'adapted torest on-top of \FUD. In the present instance, the pin 20 the base and which is-held to the base by 7 means of a bolt 22 at each corner, the plate being provided with recesses 23 at the corner so that the heads of the bolts 22 lie above the upper or working face.

Power is applied to the crank shaft 10 through the fly or pulley wheel 24, this wheel being loosely mounted on'the shaft extension andfbeing operatively connected with the shaft through a clutch 25 of any suitable form. treadle 26 on the base 1, o'peratively connected with the clutch through a connecting rod27 and a pin 28' adapted to operatively engage the movable element of the clutch, the .pin 28 being supported in a bracket 29 secured by bolts 30 to the top of one of the separators 7 In forming the frame as described, I pre- This clutch is operated through a fer to make the tie bars 4 of steel, while the separators 7 may be of 'cast iron.

The construction of the frame may modified to some extent without departure fromthe essential features of the invention rators-secured between the respective pairsof tie bars, journal elements operatively associated with the'yoke, and jacks adj ustably supported by theseparators and engaging the under sides of said journal elements.

' pairs of vertical 2. A frame comprising a base, a yoke, two and transversely spaced tie bars secured'to the base and to the yoke and supporting the yoke above the base, reinforcing separators secured between the respective pairs of bars, a member vertically adjustable at the top of each of said separators, and bearings in the yoke includin separable elements 0 eratively associated with said vertically ad ustable members.

3. A frame comprising a base, a yoke, vertical side bars secured to the base and to the yoke and supporting the yoke above the base, separator members secured between each pair of vertical bars, each of said separators having a longitudinal projection along one edge of its inner face, and members secured to the tie bar opposite the projection on each of said separator members and forming with said extension a vertical guide recess.

4. The combination of a frame including a base, a top structure and side bars including a vertical guide slot, a crankshaft j0urnaled in said superstructure, a connecting rod suspended from the crank, a ram, a transverse pin securing the ram to the lower end of the connecting rod, the ends of said pin projecting beyond the sides of said ram and into the said Vertical guide slots, and means for rotating the crank shaft.

EUGENE C. CLARKE. 

